Answer
Chambliss: 1 220 854
Martin: 905 637
Work Step by Step
Let c = no. of votes won by Chambliss
Let m = no. of votes won by Martin
c = m + 315 217
c + m = 2 126 491
(m + 315 217) + m = 2 126 491
2m = 1 901 274
m = 905 637
c = m + 315 217 = (905 637) + 315 217 = 1 220 854